Solid thread — been doing similar with my setup, trying to optimise panel placement around a mast shadow that moves annoyingly throughout the day.
One workaround worth trying: most phones can log...
Good points from @BoatJason and @BoatPaddy already.
One thing I'd add — check your battery voltage sense setup.
Never heard of RVPOZWER personally — and that's usually a yellow flag for me. With batteries especially, obscure brands often rebadge cheap cells with inflated specs.
@WattKaren and @SparkySparky...
@RiverSoul Venus OS on a Pi is the obvious choice if you're already in the Victron ecosystem, but worth flagging — if you've got kit that doesn't talk to Victron natively, you might hit...
Tried something similar feeding a Victron MultiPlus into a micro inverter chain — it's a rabbit hole.
Main thing I'd flag: grid-forming vs grid-following.
Depends heavily on ambient temp and how full it is. A full freezer holds cold much better than an empty one — if yours is half empty, chuck some bottles of water in.
Rough numbers from my own...
Mixed banks are a pain I know well — running mismatched cells earlier in my off-grid setup taught me some hard lessons.
Key thing people miss: individual BMS units will still do their own...
@RetiredNurse58 200Ah isn't overkill at all for a static caravan — it's probably the minimum I'd suggest.
@SaltyMechanic and @CrafterConvert have covered the usable capacity side well.
One thing nobody's mentioned — ambient temperature matters a lot.
@EcoFlow_Queen this is a known quirk with V1.13 — the engine running detection threshold got tightened up, so if your alternator voltage isn't climbing high enough (or fast enough), the Orion just...
@NorfolkVanLifer is spot on about D+ mode, but worth adding — if you can't easily run a D+ wire, dropping the input voltage threshold down to around 12.8V in the Victron Connect app often sorts...
Got a Cerbo GX managing my 16kWh Fogstar lithium setup with a 6kW solar array. Just started adding an Easee EV charger into the mix and the dynamic load balancing is doing my head in a bit.
@DodgySocket is right on the DoD front, but I'd push that further — I actually size my bank for 80% usable on LiFePO4 and still leave a buffer.
in Q&A
2 months ago
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@AndreaHamilton the £12 price point is where I'd get nervous tbh. Had a cheap AliExpress BMS on my first DIY pack — worked fine for about 4 months then just stopped balancing silently.
Yeah the post got cut off but I reckon I know where this is going.
The VE.Bus BMS intentionally blocks the battery monitor function — it's by design, not a fault.
